257008507

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{9041}}^1$

素因数の和:9210

約数の個数: 16

約数和(自身を含む): 305547264

約数和(自身を除く): 48538757

約数列:

[1, 7, 31, 131, 217, 917, 4061, 9041, 28427, 63287, 280271, 1184371, 1961897, 8290597, 36715501, 257008507]

約数ペア:

[(1, 257008507), (7, 36715501), (31, 8290597), (131, 1961897), (217, 1184371), (917, 280271), (4061, 63287), (9041, 28427)]